Transportation without oil? That’s the driving idea behind Dimensional Energy, a company that’s using artificial photosynthesis to produce the raw materials for products like jet fuel. As a finalist in the $20 million Carbon X Prize competition, the startup is in the early stages of showing how recycling CO2 into sustainable fuels could significantly reduce global emissions while also creating a massively profitable industry. Dimensional Energy’s approach to decarbonization could help drastically reduce the environmental damage caused by the aviation industry, which accounts for 2% of human-induced CO2 emissions worldwide.